Whirlpool bathtub



FIG. 1 is a perspective view of a whirlpool bathtub showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a elevational view thereof, taken on line 3—3 of FIG. 2;

FIG. 4 is an elevational view thereof, taken on line 4—4 of FIG. 2;

FIG. 5 is an elevational view thereof, taken on line 5—5 of FIG. 2;

FIG. 6 is a cross-sectional view thereof, taken on line 6—6 of FIG. 2;

FIG. 7 is a cross-sectional view thereof, taken on line 7—7 of FIG. 2; and,

FIG. 8 is a cross-sectional view thereof, taken on line 8—8 of FIG. 2. 

The ornamental design for a whirlpool bathtub, as shown. 